When steg is executed for the first time an End User Agreement is prompted. At that point you can read it, then accept and use Steg or reject and quit. But in practice there is no strange clauses, only the usual kind of things typical of any freeware software. Take a look at the website home page: there is a little abstract: "The usual disclaimer applies..."
- Sadly, I noticed that the Qt support for TIFF images has been moved from the core of the Qt Framework and now an additional plugin is needed which is not shipped within the Steg package.
- In some cases, when you try to extract data from images without any data inside (data hidden with Steg obviously), you may experience a program crash instead of the normal info dialog. This problem does not affect the data extraction when there is something to extract. The bug was fixed in the actual Steg revision but, for now, it is not released. Thanks to Tyler Hughes for the bug report.
- For now, Steg does not support JPG images encoded with the YCMK color space (but a preliminary support is under the hood).
- Wrong website URL in the current release. I had to change URL but I does not release a new version with the correction.
I feel ashamed of my coding style. ;-)
Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message.
--Wikipedia, Steganography page.
For further information start from Wikipedia.